温梯法与提拉法生长YAG晶体吸收光谱的研究

1.中国科学院上海光学精密机械研究所,上海,201800

2.中国科学院上海光学精密机械研究所,上海,201800

3.中国科学院上海光学精密机械研究所,上海,201800

4.中国科学院上海光学精密机械研究所,上海,201800

Investigation on Absorption Spectra of YAG Crystals Grown by CZ and TGT Method

本文研究了提拉法和温梯法生长的YAG晶体在紫外-可见光-红外的吸收光谱,发现提拉法生长的YAG在255nm处产生弱吸收,而温梯法生长的晶体在该处不存在吸收峰.通过对YAG晶体荧光光谱及电子顺磁共振谱的测试和分析,认为提拉法的晶体在255nm处产生的弱吸收是由Fe3+所引起的.

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